* {
  /*设置所有的margin 和padding 都为0*/
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  background-color: #f4f5f7;
}
ul,
ol {
  /*去掉列表的小点*/
  list-style: none;
}
li {
  list-style: none;
}
a {
  font-weight: none;
  color: #333d49;
  text-decoration: none;
}
a:hover {
  color: #00a4ff;
}
.w {
  width: 1200px;
  margin: 0 auto;
}
img {
  vertical-align: middle;
}
/**
 * [clearfix description]
 * @type {[type]}
 * content 内容为小点，尽量不要加空，否则旧版本的浏览器有空隙
 * display:block;装换成块元素
 * height: 0; 高度设置为0
 * visibility: hidden; 隐藏盒子
 * clear: both; 清除浮动
 */
.clearfix:before,
.clearfix:after {
  content: ".";
  display: block;
  visibility: hidden;
  height: 0px;
  clear: both;
}
.clearfix {
  *zoom: 1;
}
.header {
  width: 1200px;
  height: 100px;
  margin: 0 auto;
  padding-top: 30px;
}
.header nav ul li {
  height: 40px;
  line-height: 40px;
  margin-left: 20px;
  float: left;
}
.header nav ul li a {
  display: block;
  height: 40px;
  padding: 0 10px;
}
.header nav ul li a:hover {
  border-bottom: 2px solid #00a4ff;
}
.header .logo {
  margin-left: 0px;
}
.header .logo a {
  width: 195px;
  height: 42px;
  background: url(../../images/plan/logo.png) no-repeat;
  display: block;
}
.header .fl {
  float: left;
  font-size: 16px;
}
.header .fr {
  position: relative;
  float: right;
  font-size: 16px;
}
.header .fr i {
  position: absolute;
  top: 13px;
  right: 122px;
  width: 5px;
  height: 5px;
  background: #FF3000;
  border-radius: 50%;
}
.header .fr a {
  line-height: 40px;
  margin-right: 12px;
}
.header .fr a:last-child {
  margin-right: 0px;
}
.header .search {
  width: 410px;
  height: 40px;
  margin-right: 30px;
}
.header .search input {
  font-size: 7px;
  width: 360px;
  height: 40px;
  float: left;
  border: 1px solid #00a4ff;
  outline: none;
  padding-left: 15px;
}
.header .search button {
  width: 50px;
  height: 40px;
  border: none;
  float: left;
}
.header .search button:hover {
  cursor: pointer;
}
.header .pearson {
  margin-right: 5px;
  height: 40px;
  line-height: 40px;
}
.header .pearson .ld {
  margin-right: 12px;
}
.header .pearson .qq img {
  width: 30px;
  height: 30px;
  border-radius: 50%;
}
.footer {
  margin-top: 20px;
  background-color: #fff;
  height: 200px;
}
.footer .w {
  padding-top: 35px;
}
.footer .copyright {
  float: left;
}
.footer .copyright p {
  font-size: 12px;
  color: #666;
  margin: 20px 0 15px 0;
}
.footer .copyright .app {
  display: block;
  width: 118px;
  height: 33px;
  border: 2px solid #00a4ff;
  font-size: 16px;
  text-align: center;
  line-height: 33px;
  color: #00a4ff;
}
.footer .links {
  float: right;
}
.footer .links dl {
  float: left;
  margin: -10px 56px 0;
  font-size: 12px;
}
.footer .links dl dt {
  font-size: 18px;
  height: 32px;
  line-height: 32px;
  color: #333;
}
.footer .links dl dt a {
  font-size: 12px;
  color: #333;
  margin: 5px;
}
.footer .links dl dd {
  height: 22px;
  line-height: 22px;
}
